Durable method for producing finned tubing
作者： Hugh Hiram Ruble , Jimmy Carroll England , Frederick Ernest Moehling , John Robert Hensley , Everett Maxwell Roberts
DOI:
关键词: Structural engineering 、 Mandrel 、 Composite material 、 Tube (fluid conveyance) 、 Engineering
摘要: The method of the invention produces a for fabricating metal tube that contains at least 30 wt % nickel and 10 chromium. utilized an elongated mandral having oversized diameter land portions. portions project radially outward from mandrel extend longitudinally along mandrel. valley are located between Oversized internally finned tubing is formed with sent to finished diameter. sinking reduces radial spacing fins elongates without substantially reducing height fins.
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